Most types of blue cheese are naturally gluten-free, as they are made from milk and do not contain any wheat-based ingredients. However, it’s always a good idea to check the label or ingredient list to confirm that a particular brand of blue cheese is indeed gluten-free. Some blue cheeses may be made with a small amount of wheat-based cultures or may be processed in a facility that also handles wheat, so there is a slight risk of cross-contamination. If you are following a gluten-free diet for health reasons, it’s important to be diligent about reading labels and avoiding products that contain gluten.